I agree with the others that you shouldn’t start college with the intent to transfer.
With that said, to address your question and the mechanics of things…which N.U.in program are you doing? I would check to make sure that Gtown and USC (and any other schools on your list) will accept transfer credit from that institution. The credits will not be coming from NEU, they will be coming from the N.U.In partner school (which is how NEU treats them too).
Were you also waitlisted at USC?